looking for some advice. looking to upgrade the fork on my heckler. currently running a fox van r 140mm. looking to upgrade to 160mm travel. riding is getting a bit more agressive and fork is starting to run out of ideas in some situations. any suggestions. looking second hand probs about £300. most of my riding is still trails aggresive xc with some light down hill thrown in so am trying to keep it lightish. cheers.